CN108054147B - Heat radiator with jumping diaphragm - Google Patents
Heat radiator with jumping diaphragm Download PDFInfo
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- CN108054147B CN108054147B CN201711126656.8A CN201711126656A CN108054147B CN 108054147 B CN108054147 B CN 108054147B CN 201711126656 A CN201711126656 A CN 201711126656A CN 108054147 B CN108054147 B CN 108054147B
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- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
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Abstract
A heat dissipation device with a jumping membrane is composed of a heat radiator (7), a device fixing platform (18), a temperature control water supply unit and a breathing unit. The mounting position of a water tank (9) in the temperature control water supply unit is higher than that of the radiator (7), the device fixing platform (18) is positioned at the upper part of the radiator (7), and the breathing unit is embedded in the radiator (7) and is tightly matched with the radiator (7); the power device needing heat dissipation is fixed on the device fixing platform (18); the water tank (9) is connected with the breathing unit through a water guide pipe (12) and a temperature control regulating valve (10) and provides water for evaporation and heat dissipation for the breathing unit. When pressure greater than the jumping instability point is applied to the spherical-segment-shaped jumping diaphragm (5), the spherical-segment-shaped jumping diaphragm (5) is sunken downwards, the cover-type curved surface valve is closed, and gas in the expansion chamber (4) is compressed; the segment-shaped jumping diaphragm (5) protrudes upwards, the cover-type curved valve is opened, air or water is sucked in, and gas in the expansion chamber (4) is discharged.
Description
Technical Field
The present invention relates to a heat dissipating device.
Background
Applications where heat dissipation is ubiquitous are recognized and accepted. Taking power electronics as an example, a large amount of heat is generated due to the self-loss of the power device, and the power loss is proportional to the power increase. The existing heat dissipation method mainly comprises the following steps: natural cooling, forced air exhaust cooling and water circulation cooling. The cooling effect, cost, complexity and energy loss of the wide bandgap semiconductor device are sequentially from low to high, the reliability is sequentially from high to low, and particularly in the wide bandgap semiconductor device with junction temperature as high as 225 ℃, the high temperature resistance of the wide bandgap semiconductor device cannot be exerted due to the temperature limitation of water circulation cooling. Therefore, heat dissipation is one of the key elements affecting the performance and quality of power electronic devices. The power density of the power device is the output power per unit volume, and the higher the output power per unit volume is, the better the performance of the device is. The natural cooling of the device is the first choice, and the natural cooling utilizes the heat source of the radiator to heat the ambient air under the condition of no natural wind, so as to generate cold-heat convection natural circulation heat dissipation, and has the advantages of simple and reliable natural cooling, low cost and the like. However, when the structure, volume and environmental conditions of the radiator are unchanged, the power of the device is increased, the heat productivity of the radiator is increased, the direction and speed of hot air convection of the radiator in the horizontal and vertical temperature distribution are changed, turbulent flow is formed, and the heat radiation performance is directly influenced.
With the rapid development of wide bandgap semiconductor devices, one of the outstanding advantages of wide bandgap semiconductor devices is high temperature resistance, which makes the ambient temperature of 55 ℃ of the traditional silicon semiconductor required to be raised to more than 100 ℃, and evaporation heat dissipation is a very good heat dissipation method for wide bandgap semiconductor devices because the gas evaporation can reach high temperature gas of more than 100 ℃.
Disclosure of Invention
The invention aims to overcome the defects of the existing natural cooling power device heat dissipation method and provides a heat dissipation device with a jumping membrane.
According to the invention, based on the advantages of natural cooling, forced air cooling and water cooling, based on an ideal gas state equation, when the volume is not changed, the pressure intensity is in direct proportion to the thermodynamic temperature, the self heat source of the power device is fully utilized to raise the temperature of the gas in the container, so that the pressure intensity in the container is increased, when the atmospheric pressure in the container is greater than the air pressure, the instability characteristic of the jumping diaphragm is utilized to control the valve, high-pressure airflow is instantly discharged from the outlet of the container, the acceleration direction of the airflow around the radiator is locked, and the purpose of improving the efficiency of the radiator under the natural cooling condition is achieved.
The invention relates to a heat dissipation device with a jumping membrane, which consists of a radiator, a device fixing platform, a temperature control water supply unit and a breathing unit. The water tank in the temperature control water supply unit and the radiator are separately arranged at a position higher than the radiator, the device fixing platform is positioned at the upper part of the radiator, and the breathing unit is embedded in the radiator.
One end of a water guide pipe in the temperature control water supply unit is arranged at the bottom of the water tank and is communicated with the water tank, the other end of the water guide pipe is communicated with a temperature control adjusting valve, and the temperature control adjusting valve is arranged on one side of the radiator and is connected with the breathing unit and provides part of evaporation water for the breathing unit.
The device fixing platform is used for fixing the power device.
The breathing unit is tightly matched with the radiator.
The breathing unit consists of an expansion chamber, a heat conduction material with a capillary function, an air inlet end sealing cover, a check valve, a segment-shaped jumping diaphragm and a cover-type curved valve.
The expansion chamber is tubular and is made of a material with good heat conduction. The segment-shaped jumping diaphragm covers one end of the expansion chamber, and the joint of the segment-shaped jumping diaphragm and the expansion chamber is sealed. One surface of the segment-shaped jumping membrane facing the expansion chamber is an inner surface, and the other surface of the segment-shaped jumping membrane facing away from the expansion chamber is an outer surface. The center of the segment-shaped jumping diaphragm is provided with an exhaust hole, a cover-type curved surface valve is arranged on the exhaust hole, and the cover-type curved surface valve is attached to the inner surface of the segment-shaped jumping diaphragm. The air inlet end sealing cover covers the other end of the expansion chamber and is connected with the expansion chamber in a sealing mode. The air inlet end sealing cover is made of heat insulating materials, a check valve is installed on the air inlet end sealing cover, an air inlet hole is formed in the air inlet end sealing cover, and the air inlet hole is connected with the inlet end of the check valve. The spherical segment jumping diaphragm is applied with pressure larger than a jumping instability point, the spherical segment jumping diaphragm can generate displacement mutation when being loaded or unloaded to a certain degree, when the spherical segment jumping diaphragm jumps towards the inside of the expansion chamber, the cover type curved surface valve and the check valve are closed to compress gas in the expansion chamber, and when the spherical segment jumping diaphragm jumps towards the outside of the expansion chamber, the cover type curved surface valve and the check valve are opened to generate airflow, suck air or water and discharge the gas in the expansion chamber. The air inlet hole is matched with the check valve, mixed water vapor is sucked into the expansion chamber, the water vapor entering the expansion chamber is instantaneously expanded under the action of high temperature, the pressure in the expansion chamber is greater than the pressure outside the expansion chamber, and the check valve is closed, so that the expanded gas cannot flow back. And the air inlet end sealing cover made of heat insulating materials isolates the expansion chamber from the external environment, thereby being beneficial to quickly heating the expansion chamber to evaporate the gas. The molecules of the evaporated gas absorb the heat of the radiator, so that the gas expands rapidly to drive the segment-shaped jumping membrane to bounce and take away the heat of the radiator.
The heat conduction material with the capillary function is in a hollow cylinder shape and is installed in the expansion chamber, the outer edge of the hollow cylinder of the heat conduction material is in contact with the inner wall of the expansion chamber, one end of the hollow cylinder of the heat conduction material is connected to the inner side of the sealing cover at the air inlet end, the check valve is arranged in the center of the hollow cylinder of the heat conduction material, when water and air enter the expansion chamber through the check valve, the water is quickly dispersed into small particles through the heat conduction material with the capillary function, and the water is quickly evaporated.
The spherical segment-shaped jumping diaphragm is characterized in that a cover-type curved surface valve is mounted on the central exhaust hole of the spherical segment-shaped jumping diaphragm, and the cover-type curved surface valve is attached to the inner surface of the spherical segment-shaped jumping diaphragm. Due to the unique spherical segment structure of the spherical segment-shaped jumping diaphragm, when pressure greater than the jumping instability point is applied to the spherical segment-shaped jumping diaphragm, the spherical segment-shaped jumping diaphragm loses stability, the shape is suddenly changed, large deflection is generated in the center of the spherical segment-shaped jumping diaphragm, the spherical segment-shaped jumping diaphragm protrudes upwards or downwards, and the cover-type curved surface valve is synchronously opened or closed.
The air inlet end sealing cover is provided with a check valve for controlling the mixed water gas to flow into the expansion chamber in a single direction.
The cover type curved surface valve consists of an exhaust hole and a star-shaped valve plate which are positioned in the center of the spherical segment-shaped jumping membrane; the center of the star-shaped valve block is a circular valve block, the radius of the valve block is larger than that of the exhaust hole, the valve block is concentric with the exhaust hole in the segment-shaped jumping membrane, the edge of the valve block is connected with a plurality of soft ropes with equal length, and the other ends of the soft ropes are uniformly adhered to the inner surface of the segment-shaped jumping membrane along the circumference of the exhaust hole. The soft rope is used for limiting the moving distance of the valve plate, when the inner surface of the spherical segment-shaped jumping membrane is concave downwards and is in a stable state, the valve plate just covers the exhaust hole due to the limitation of the length of the soft rope, and the exhaust is closed; when the inner surface of the segment-shaped jumping membrane protrudes upwards and is in a stable state, the valve plate is opened, and the exhaust hole is opened. The cover type curved surface valve is synchronously opened or closed.
When the segment-shaped jumping diaphragm jumps into the expansion chamber, the segment-shaped jumping diaphragm is concave, the cover-type curved valve and the check valve are closed, and the gas in the expansion chamber is compressed; when the segment-shaped jumping diaphragm jumps to the outside of the expansion chamber, the segment-shaped jumping diaphragm protrudes upwards, the cover-type curved valve and the check valve are opened, air flow is generated, air or water is sucked in, and gas in the expansion chamber is discharged.
The temperature control water supply unit consists of a water tank, a water guide pipe, a temperature control regulating valve and a water injection check valve; the water guide pipe is positioned at the lower part of the water tank, one end of the water guide pipe is communicated with the water tank, and the other end of the water guide pipe is communicated with the water inlet end of the temperature control regulating valve. The water outlet end of the temperature control regulating valve is communicated with the check valve and the air inlet on the air inlet end sealing cover, and the temperature sensor on the temperature control regulating valve is connected with the radiator. The water injection check valve positioned at the upper part of the water tank is a water injection and air inlet of the water tank; the temperature sensor on the temperature control regulating valve is arranged on one side of the radiator close to the air inlet.
The temperature control water supply unit supplies water to the expansion chamber, so that heat is taken away by water heat absorption and evaporation. The temperature control regulating valve controls the amount of water entering the expansion chamber by sensing the temperature rise or the temperature fall of the radiator, thereby ensuring minimum water supply when the radiating condition is met. The water tank of the temperature control water supply unit is far away from the heat source of the radiator, can provide water with ambient temperature or lower temperature, improves the temperature difference with the radiator, and is beneficial to absorbing more heat.
The invention can provide various water supply modes.
Wherein a water injection check valve on the water tank provides water injection and air intake while preventing water evaporation loss.
The working principle and the working process of the heat dissipation device with the jumping membrane are as follows:
when the power device is operated, the heat sink absorbs a large amount of heat emitted from the power device. Groups of breathing cells in the heat sink rapidly conduct the temperature to the expansion chamber and the heat conducting material with capillary function. Liquid water and the gas that carries of water tank exhaust are through check valve rapid diffusion and absorption heat in the heat conduction material that has the capillary function, and water and gas are because the evaporation expansion of absorption expansion chamber heat, make the increase of expansion chamber internal pressure, because PV is Rt increases the temperature increase at the pressure increase under the isochoric condition, gas rapid expansion accelerates, and wherein P is pressure, and V is the volume, R coefficient of heat conductivity, t is the temperature. When the pressure intensity is larger than the jump instability point of the spherical-segment-shaped jump membrane, the spherical-segment-shaped jump membrane jumps from a concave shape to a convex shape, the cover-type curved surface valve is opened, the airflow generated when the spherical-segment-shaped jump membrane jumps carries the hot air flow of the expansion chamber to be quickly discharged in the same direction, the hot air flow enables the local air of the radiator to expand, the air density and the air pressure are reduced, the radiator and the peripheral air flow directionally, and cold and hot air convection is formed.
When the spherical segment jumping diaphragm is in a stable state from the concave to the convex, the valve block just opens the exhaust hole, air flow in the expansion chamber is rapidly discharged, the pressure in the expansion chamber is also rapidly reduced, the pressure in the expansion chamber is smaller than the outside pressure, the check valve is opened at the moment, and gas and a small amount of water are sucked into the expansion chamber.
The structure of the spherical segment jumping membrane is determined, and when the spherical segment jumping membrane is turned from a concave shape to a convex shape to a limit degree, the spherical segment jumping membrane automatically rebounds and turns from the convex shape to the concave shape. When the spherical segment jumping membrane jumps from the convex shape to the concave shape and turns over, the valve plate covers the exhaust hole, the exhaust is closed, the inner surface of the spherical segment jumping membrane acts on the reverse compression of the gas in the expansion chamber, and the check valve is closed. The pressure of the gas inside the expansion chamber is greater than the atmospheric pressure outside the expansion chamber, a process also referred to as a breathing unit inspiration process. The pressure in the expansion chamber is now: the ambient atmospheric pressure and the rebound of the spherical segment jumping diaphragm set the compression pressure of the gas in the expansion chamber as the pressure of the expansion chamber.
When the water and gas absorbed into the expansion chamber absorb heat to evaporate and expand, the pressure in the expansion chamber is increased. The pressure in the expansion chamber is now: the ambient atmospheric pressure, the water evaporation expansion pressure, the gas compression pressure of the spherical segment jumping diaphragm to the expansion chamber is equal to the pressure in the expansion chamber;
when the segmental spherical jumping diaphragm reaches the jumping instability point pressure, the water evaporation expansion pressure in the expansion chamber is as follows: the water evaporation expansion pressure is equal to the jumping instability point pressure of the spherical-segment jumping diaphragm-the ambient atmospheric pressure-the gas compression pressure of the spherical-segment jumping diaphragm rebounding to the expansion chamber; the jumping instability point pressure of the spherical-segment-shaped jumping diaphragm is equal to the pressure in the expansion chamber.
The water tank in the temperature control water supply unit supplies water to the expansion chamber through the water guide pipe and the temperature control flow regulating valve, and the water supply amount is in direct proportion to the temperature of the radiator. Because the temperature sensor of the temperature control flow regulating valve is arranged on the radiator, the temperature of the radiator determines the water supply quantity of the temperature control flow regulating valve, the higher the temperature of the radiator is, the more the water quantity provided to the expansion chamber by the temperature control flow regulating valve is, the higher the steam density in the expansion chamber is, the more the temperature of the absorbed radiator is, the larger the discharged gas flow is, the better the heat dissipation effect is, otherwise, the lower the temperature of the radiator is, the synchronous reduction of the water quantity output to the expansion chamber by the temperature control water supply unit through the temperature control flow regulating valve is, when the temperature reduction of the radiator meets the natural heat dissipation condition, the temperature control. Thereby greatly reducing the amount of water used for heat dissipation.
In order to ensure the efficiency of the heat dissipation device and reduce the water consumption, the heat dissipation device dissipates heat through four processes:
1. when the radiator is at low temperature, the heat radiating device of the invention enters a natural cooling process;
2. when the temperature of the radiator is increased but is lower than the water supply temperature of the temperature control flow regulating valve, the expansion chamber only sucks air, and the radiator heats, expands and radiates the heat to the air through the thermal expansion chamber;
3. the temperature of the radiator is gradually increased to be higher than or equal to the water supply temperature of the temperature control flow regulating valve, the expansion chamber sucks air and water, the radiator heats the water and the air through the thermal expansion chamber, the water and the air absorb heat, evaporate and expand, and when the internal pressure of the expansion chamber reaches the pressure of the spherical segment jumping diaphragm jumping instability point, the heat absorption gas in the expansion chamber is discharged for heat dissipation. The flow of water is controlled by sensing the temperature of the radiator through the temperature control flow regulating valve, so that the water supply quantity of the temperature control water supply unit to the expansion chamber is in direct proportion to the temperature of the radiator, the higher the temperature of the radiator is, the larger the water supply quantity of the temperature control water supply unit to the expansion chamber is, and on the contrary, the lower the temperature of the radiator is, the smaller the water supply quantity of the temperature control water supply unit to the expansion chamber is;
4. the temperature of the radiator is reduced to be lower than the water supply temperature of the temperature control flow regulating valve, the temperature control flow regulating valve controls the water tank to stop supplying water, the radiator heats air sucked into the expansion chamber, the air expands to dissipate heat, and the natural cooling process of the radiator is gradually carried out;
the heat dissipation amount is related to the water consumption, heat dissipation temperature, expansion chamber capacity, exhaust air amount and air speed, and the air flow rate u is related to the pressure p of the expansion chambermExpansion chamber volume V related to cover type curved valve exhaust hole area sgThe size is independent of the gas flow velocity u and related to the flow, and the larger the volume is, the larger the exhaust flow is, and the longer the exhaust time is. The smaller the capacity of the expansion chamber is, the smaller the exhaust flow is, the shorter the heating time is, and the higher the frequency of the breathing unit for completing one breathing and inhaling process is;
the heat radiator of the present invention integrates mechanical motion, aerodynamic force and thermal force, and has the advantages of water cooling, forced air cooling and natural cooling. Due to the heat dissipation amount WRThe exhaust frequency F of the expansion chamber and the temperature T of the radiatorcLength of time tsWater amount LwExpansion chamber volume VgAnd segmental jump diaphragm instability point pressure pmRelated, therefore, there is a heat dissipation amount WR：
WR＝f(ts，Vg，Tc，Lw，p1F); due to the pressure p of the expansion chamber1The pressure of the expansion chamber is equal to the instability point pressure of the spherical-segment-shaped jumping diaphragm.
The invention has the following characteristics:
● water collection, forced wind, natural heat dissipation: when the expansion chamber sucks water, water evaporation cooling is carried out, the process is the same as water cooling heat dissipation, when the expansion chamber evaporates and exhausts gas, the process is the same as forced air cooling heat dissipation, and the process that the radiator is placed in a natural environment for heat dissipation and natural cooling, so that the heat dissipation of the advantages of the expansion chamber is integrated;
● when natural cooling, the radiator temperature is lower than the critical point of temperature control, the invention adopts air heating expansion to radiate, only when the radiator temperature is higher than the critical point of temperature control, the water evaporation radiation is started, thus the water consumption is less;
● compared with natural air cooling with the same volume, it does not consume extra power, and improves heat dissipation capability, thereby improving power output density;
● the heat dissipation area is large;
● has simple mechanical structure, high reliability and low cost;
drawings
FIG. 1 is a view showing the structure of a heat dissipating device according to the present invention;
FIG. 2 is a schematic view of a segment-shaped jumping diaphragm;
fig. 3 is a schematic diagram of the structural principle of a spherical segment jumping diaphragm cover type curved surface valve switch.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the heat dissipating device with jumping membrane of the present invention is composed of a heat sink 7, a device fixing platform 18, a temperature-controlled water supply unit and a breathing unit.
The water tank 9 in the temperature control water supply unit is separated from the radiator 7 and is arranged at a position higher than the radiator 7. The device mounting platform 18 is located on top of the heat sink 7 and the breathing unit is embedded in the heat sink 7. The power device requiring heat dissipation is fixed to the device fixing platform 18.
A water tank 9 in the temperature control water supply unit is connected with the breathing unit through a water guide pipe 12 and a temperature control regulating valve 10, and evaporation and heat dissipation water is supplied to the breathing unit;
the device fixing platform 18 is positioned at the upper part of the radiator 7, and the power device is fixed on the device fixing platform 18.
The breathing unit is embedded in the radiator 7 and is tightly matched with the radiator 7.
The breathing unit consists of an expansion chamber 4, a heat conduction material 17 with a capillary function, an air inlet end sealing cover 1, a check valve 2, a dish-shaped metal jumping diaphragm 5, a cover-type curved valve and an air inlet 13.
As shown in fig. 2, the expansion chamber 4 is tubular and made of a material with good heat conductivity. The segment-shaped jumping diaphragm 5 covers one end of the expansion chamber 4, and the joint of the segment-shaped jumping diaphragm and the expansion chamber 4 is sealed. One surface of the segment-shaped jumping diaphragm 5 facing the inner side of the expansion chamber 4 is an inner surface, and the other surface of the segment-shaped jumping diaphragm facing away from the inner side of the expansion chamber 4 is an outer surface. The air inlet end sealing cover 1 is provided with a check valve 2 and is provided with an air inlet 13, and the air inlet 13 is connected with the inlet end of the check valve 2. The pressure greater than the jumping instability point is applied to the segment-shaped jumping diaphragm, the segment-shaped jumping diaphragm 5 can be displaced and suddenly changed when being loaded or unloaded to a certain degree, when the segment-shaped jumping diaphragm 5 jumps into the expansion chamber 4, the gas in the expansion chamber 4 is compressed, and when the segment-shaped jumping diaphragm 5 jumps out of the expansion chamber 4, the gas flow is generated, the air or the water is sucked in, and the gas in the expansion chamber 4 is discharged. The air inlet end sealing cover 1 covers the other end of the expansion chamber 4 and is connected with the expansion chamber 4 in a sealing mode. The air inlet end sealing cover 1 is made of heat insulating materials. The air inlet end sealing cover 1 is provided with a check valve 2 and an air inlet 13. The air inlet 13 is connected with the inlet end of the check valve 2. The mixed water vapor is sucked into the expansion chamber 4 through the air inlet 13 and the check valve 2, the water vapor entering the expansion chamber 4 is expanded instantly under the action of high temperature, the pressure in the expansion chamber 4 is higher than the pressure outside the expansion chamber 4, and the check valve 2 is closed, so that the expanded gas cannot flow back. And the heat-insulating material of the air inlet end sealing cover 1 can isolate the temperature of the expansion chamber 4 from the external environment temperature, thereby being beneficial to the rapid heating gas evaporation of the expansion chamber 4. The evaporated gas molecules absorb the heat of the radiator 7, so that the gas expands rapidly to drive the segment-shaped jumping diaphragm 5 to bounce and take away the heat of the radiator 7. The heat conduction material 17 with the capillary function is in a hollow cylinder shape and is installed in the expansion chamber 4, the outer edge of the hollow cylinder of the heat conduction material 17 is in contact with the inner wall of the expansion chamber 4, one end of the hollow cylinder is connected with the inner side of the air inlet end sealing cover 1, the check valve 2 is arranged at the central position of the hollow cylinder of the heat conduction material 17, when water and air enter the expansion chamber 4 through the check valve 2, the water is quickly dispersed into small particles through the heat conduction material 17 with the capillary function, and the water is quickly evaporated.
And a cover type curved surface valve is arranged on the central exhaust hole 15 of the segment-shaped jumping membrane 5, and the cover type curved surface valve is attached to the inner surface of the segment-shaped jumping membrane 5. Due to the unique spherical segment structure of the spherical segment-shaped jumping diaphragm 5, when pressure greater than the jumping instability point is applied to the spherical segment-shaped jumping diaphragm 5, the spherical segment-shaped jumping diaphragm 5 loses stability, the shape is suddenly changed, large deflection is generated in the center of the spherical segment-shaped jumping diaphragm 5, the spherical segment-shaped jumping diaphragm 5 protrudes upwards or downwards, and the cover-type curved surface valve is synchronously opened or closed.
When the segment-shaped jumping diaphragm 5 jumps into the expansion chamber 4, the segment-shaped jumping diaphragm 5 is concave, the cover-type curved valve and the check valve 2 are closed, and the gas in the expansion chamber 4 is compressed; when the segment-shaped jumping diaphragm 5 jumps to the outside of the expansion chamber 4, the segment-shaped jumping diaphragm 5 protrudes upwards, the cover-type curved valve and the check valve 2 are opened, air flow is generated, air or water is sucked in, and gas in the expansion chamber 4 is discharged.
The air inlet end sealing cover 1 is provided with a check valve 2 for controlling the mixed water vapor to flow into the expansion chamber 4 in a single direction.
As shown in figure 3, the cover type curved surface valve consists of an exhaust hole 15 and a star-shaped valve plate which are positioned in the center of the spherical segment-shaped jumping membrane 5. The center of the star-shaped valve plate is a circular valve plate 6, the radius of the valve plate 6 is larger than that of the vent hole 15, the valve plate 6 is concentric with the vent hole 15 on the spherical-segment-shaped jumping membrane 5, the edge of the valve plate 6 is connected with a plurality of soft ropes 16 with equal length, and the other ends of the soft ropes 16 are uniformly adhered to the inner surface of the spherical-segment-shaped jumping membrane 5 along the circumference of the vent hole 15. The soft rope 16 is used for limiting the moving distance of the valve plate 6, the inner surface of the spherical-segment-shaped jumping membrane 5 is concave downwards, and when the valve plate 6 is in a stable state, the length of the soft rope 16 is limited, the vent hole 15 is covered, and the vent hole is closed; when the inner surface of the segment-shaped jumping membrane 5 protrudes upwards and is in a stable state, the valve plate 6 is opened, and the exhaust hole 15 is opened. The cover type curved surface valve is synchronously opened or closed.
When the segment-shaped jumping diaphragm 5 jumps into the expansion chamber 4, the segment-shaped jumping diaphragm 5 is concave, the cover-type curved valve and the check valve 2 are closed, and the gas in the expansion chamber 4 is compressed; when the segment-shaped jumping diaphragm 5 jumps to the outside of the expansion chamber 4, the segment-shaped jumping diaphragm 5 protrudes upwards, the cover-type curved valve and the check valve 2 are opened, air flow is generated, air or water is sucked in, and gas in the expansion chamber 4 is discharged.
The temperature control water supply unit consists of a water tank 9, a water guide pipe, a temperature control regulating valve 10 and a water injection check valve 11; the water guide pipe 12 is located at the lower part of the water tank 9, one end of the water guide pipe is communicated with the water tank 9, and the other end of the water guide pipe is communicated with the water inlet end of the temperature control regulating valve 10. The water outlet end of the temperature control regulating valve 10 is communicated with the check valve 2 and the air inlet 13 on the air inlet end sealing cover 1, and the temperature sensor on the temperature control regulating valve 10 is connected with the radiator 7. A water filling check valve 11 located in the upper part of the water tank 9 is the water filling and air intake port of the water tank and prevents water evaporation loss.
Claims (5)
1. The utility model provides a heat abstractor with jump diaphragm which characterized in that: the heat dissipation device with the jumping membrane consists of a radiator (7), a device fixing platform (18), a temperature control water supply unit and a breathing unit; a water tank (9) in the temperature control water supply unit is arranged at a position higher than the radiator (7), a device fixing platform (18) is positioned at the upper part of the radiator (7), and a breathing unit is embedded in the radiator (7) and is tightly matched with the radiator (7); the power device needing heat dissipation is fixed on the device fixing platform (18);
the water tank (9) is connected with the breathing unit through a water guide pipe (12) and a temperature control regulating valve (10) and provides water for evaporation and heat dissipation for the breathing unit;
the device fixing platform (18) is positioned at the upper part of the radiator (7) and is used for fixing the power device;
the breathing unit consists of an expansion chamber (4), a heat conduction material (17) with a capillary function, an air inlet end sealing cover (1), a check valve (2), a segment-shaped metal jumping membrane (5), a cover type curved surface valve and an air inlet hole (13); the expansion chamber (4) is tubular, and the spherical segment-shaped metal jumping membrane (5) covers one end of the expansion chamber (4) and is sealed at the joint of the expansion chamber (4); the air inlet end sealing cover (1) covers the other end of the expansion chamber (4) and is connected with the expansion chamber (4) in a sealing way; the air inlet end sealing cover (1) is provided with a check valve (2) and is provided with an air inlet hole (13), and the air inlet hole (13) is connected with the inlet end of the check valve (2); one surface of the segment-shaped metal jumping membrane (5) facing the inner side of the expansion chamber (4) is an inner surface, and the other surface of the segment-shaped metal jumping membrane facing away from the inner side of the expansion chamber (4) is an outer surface; a cover type curved surface valve is arranged on a central exhaust hole (15) of the segment-shaped metal jumping diaphragm (5), and the cover type curved surface valve is attached to the inner surface of the segment-shaped metal jumping diaphragm (5); the heat conduction material (17) with the capillary function is in a hollow cylindrical shape and is placed in the expansion chamber (4), the outer edge of the hollow cylindrical shape of the heat conduction material (17) is in contact with the inner wall of the expansion chamber, one end of the heat conduction material (17) is connected with the inner side of the air inlet end sealing cover (1), and the check valve (2) is arranged in the center of the heat conduction material (17);
when pressure larger than a jumping instability point is applied to the spherical-segment-shaped metal jumping membrane (5), the spherical-segment-shaped metal jumping membrane (5) is subjected to displacement mutation, convex or concave, and the cover-type curved surface valve is synchronously opened or closed when the spherical-segment-shaped metal jumping membrane (5) is loaded or unloaded to a certain degree; when the segmental metal jumping diaphragm (5) jumps into the expansion chamber (4), the cover type curved surface valve and the check valve (2) are closed, and gas in the expansion chamber (4) is compressed; when the segment-shaped metal jumping diaphragm (5) jumps to the outside of the expansion chamber (4), the cover-type curved valve and the check valve (2) are opened to generate airflow, so that air or water is sucked in and gas in the expansion chamber (4) is discharged.
2. The heat sink with jumping membrane of claim 1, wherein: the temperature control water supply unit consists of a water tank (9), a water guide pipe (12), a temperature control regulating valve (10) and a water injection check valve (11); one end of the water guide pipe (12) is connected with the water tank (9), the other end of the water guide pipe is connected with the water inlet end of the temperature control regulating valve (10), the water outlet end of the temperature control regulating valve (10) is connected with the check valve (2) and the air inlet hole (13) on the air inlet end sealing cover (1), and the temperature sensor on the temperature control regulating valve (10) is connected with the radiator (7).
3. The heat sink with jumping membrane of claim 1, wherein: the cover type curved surface valve consists of an exhaust hole (15) and a star-shaped valve plate which are positioned in the center of the segment-shaped metal jumping diaphragm (5); the center of the star-shaped valve plate is a circular valve plate (6); the radius of the valve plate (6) is larger than that of the vent hole (15), and the valve plate (6) is concentric with the vent hole (15) on the segment-shaped metal jump diaphragm (5); the edge of the valve plate (6) is connected with a plurality of soft ropes (16) with equal length, and the other ends of the soft ropes (16) are stuck to the inner surface of the segment-shaped metal jumping membrane (5) along the circumference of the exhaust holes (15); the soft rope (16) is used for limiting the moving distance of the valve plate (6), the inner surface of the segment-shaped metal jumping membrane (5) is concave downwards, and when the valve plate (6) is in a stable state, the length of the soft rope limits the valve plate to cover the exhaust hole (15), and the exhaust hole is closed; when the inner surface of the segment-shaped metal jumping membrane (5) protrudes upwards and is in a stable state, the valve plate (6) is opened, and the exhaust hole (15) is opened.
4. The heat sink with jumping membrane of claim 1, wherein: the temperature control water supply unit consists of a water tank (9), a water guide pipe (12), a temperature control regulating valve (10) and a water injection check valve (11); one end of a water guide pipe (12) is connected with a water tank (9), the other end of the water guide pipe is connected with a water inlet end of a temperature control regulating valve (10), a water outlet end of the temperature control regulating valve (10) is connected with a check valve (2) and an air inlet hole (13) on a sealing cover (1) at an air inlet end, a temperature sensor on the temperature control regulating valve (10) is connected with a radiator (7), and a water injection check valve (11) is positioned at the upper part of the water tank.
5. The heat sink with jumping membrane of claim 1, wherein: the air inlet end sealing cover (1) is made of heat insulating materials, and the expansion chamber (4) is made of heat conducting materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711126656.8A CN108054147B (en) | 2017-11-15 | 2017-11-15 | Heat radiator with jumping diaphragm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711126656.8A CN108054147B (en) | 2017-11-15 | 2017-11-15 | Heat radiator with jumping diaphragm |
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| CN108054147A CN108054147A (en) | 2018-05-18 |
| CN108054147B true CN108054147B (en) | 2020-05-15 |
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| CN201711126656.8A Active CN108054147B (en) | 2017-11-15 | 2017-11-15 | Heat radiator with jumping diaphragm |
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| CN113628063B (en) * | 2020-05-06 | 2023-06-30 | 重庆昕晟环保科技有限公司 | Water supply method of combined secondary water supply tank based on actual reserve water quantity |
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| CN108054147A (en) | 2018-05-18 |
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